Home / 6,111.80-9,138.90-4,556.60

Finding the Fourth Proportional to 6,111.80, 9,138.90 and 4,556.60

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Solution

The fourth proportional to 6,111.80, 9,138.90 and 4,556.60 is: 6,813.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,111.80 : 9,138.90 = 4,556.60 : x
  2. Step 2: Convert to fraction form
    6,111.80/9,138.90 = 4,556.60/x
  3. Step 3: Cross multiply
    6,111.80x = 9,138.90 × 4,556.60
  4. Step 4: Simplify right side
    6,111.80x = 41,642,311.74
  5. Step 5: Solve for x
    x = 41,642,311.74/6,111.80
  6. Step 6: Final answer
    x = 6,813.43

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.